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KNX Technical Reference Manual
®
ABB-i-Bus
-KNX Millenium
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11.5.20
Fan coil manual
Number
18
Using this 1-bit communication object, a fan coil actuator can be placed in manual fan mode or
returned to automatic fan mode. In the automatic fan mode of the fan coil actuator, the fan's
rotational speed is defined in the fan coil actuator using the control value. In manual fan
operation, the user of the room temperature controller can set the fan's rotational speed as
needed. This setting will remain active until it is reset. The fan speed level 0 is an exception: to
avoid damage to the building, automatic mode is activated again 18 hours after fan speed level
0 is selected.
Note
Item 2:
If fan coil manual is active in the master/slave mode, the fan coil manual (slave)
object must be connected to this object.
Item 3:
If fan coil manual is active in the master/slave mode, the fan coil manual (master)
object must be connected to this object.
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11.5.21
Fan coil step
Number
19
The fan speed level in the fan coil actuator is selected via the 1-byte communication object.
Whether the fan speed level information is transmitted in manual or also in automatic fan speed
level mode can be set. The formats that can be selected for the 1-byte communication object
are the fan speed level (0..5) or a percentage value (0..100%) which is calculated back to a fan
speed level in the fan coil actuator.
Note
Item 2:
If fan coil step is active in the master/slave mode, the fan coil step (slave) object
must be connected to this object.
Item 3:
If fan coil step is active in the master/slave mode, the fan coil step (slave) object
must be connected to this object.
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KNX Technical Reference Manual | 1473-1-8681
Name
1. Fan coil manual
2. Fan coil manual (master)
3. Fan coil manual (slave)
Name
1. Fan coil step
2. Fan coil step (master)
3. Fan coil step (slave)
Description of applications /
Object function
Data type
Output
Switching
Output
Switching
Output
Switching
Object function
Data type
Output
2-byte floating point
value
Output
2-byte floating point
value
Output
2-byte floating point
value
objects
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